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tikzlibraryriscvproc.code.tex
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% riscvproc %
% A RISC-V Processor Components CircuiTikZ Library %
% Copyright (C) 2025 Niklas Ladurner - All Rights Reserved %
% %
% You may use, distribute and modify this code under the %
% terms of the GNU General Public License. %
% %
% You should have received a copy of the GNU General Public %
% License with this file. If not, please visit %
% www.gnu.org/licenses/gpl-3.0.html %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Define keys
%
\ctikzset{processor/.is family}
\ctikzset{processor/scale/.initial=1} % scale of all components
\ctikzset{processor/thickness/.initial=2} % line width of all components
\def\customfont{\rmfamily}
\ctikzset{processor/font/.store in=\customfont} % set font for component labels
% TODO: line thickness for leads
\ctikzset{processor/memory/height/.initial=2} % height of memory components
\ctikzset{processor/memory/width/.initial=1.25} % width of memory components extend unit
\ctikzset{processor/memory/tickwidth/.initial=2} % width of register file
\ctikzset{processor/control/heightsc/.initial=2.5} % height of sc control unit
\ctikzset{processor/control/heightmc/.initial=3.5} % height of mc control unit
\ctikzset{processor/control/width/.initial=0.9} % width of control units
\ctikzset{processor/control/radius/.initial=5} % border radius fo control units
\ctikzset{processor/arith/height/.initial=0.9} % height of arith components
\ctikzset{processor/arith/width/.initial=0.7} % width of arith components
\ctikzset{processor/arith/slope/.initial=15} % slope of arith component sides
\ctikzset{processor/extend/height/.initial=0.6} % height of right side of extend
\ctikzset{processor/extend/width/.initial=2} % width of extend
\ctikzset{processor/extend/slope/.initial=7} % slope of extend unit side
\ctikzset{processor/mux/slope/.initial=15} % slope of mux sides
\ctikzset{processor/misc/smallheight/.initial=0.65} % height for small components
\ctikzset{processor/misc/smallwidth/.initial=0.3} % width for small components (e.g. small reg/mux/clk input)
\ctikzset{processor/misc/leadlen/.initial=.25} % length of input and output leads (suggested ~ 0.15 * /memory/width)
\ctikzset{processor/mux/inputs/.initial = 2} % default number of mux inputs
\tikzset{
inputs/.style args={#1}{circuitikz/processor/mux/inputs=#1}
}
\ctikzset{processor/reg/stacks/.initial = 1} % default mux height is smallHeight
\tikzset{
stacks/.style args={#1}{circuitikz/processor/reg/stacks=#1}
}
\newif\ifpgfcirc@draw@enable@input\pgfcirc@draw@enable@inputfalse
\ctikzset{processor draw enable input/.is choice}
\ctikzset{processor draw enable input/true/.code={\pgfcirc@draw@enable@inputtrue}}
\ctikzset{processor draw enable inputs/false/.code={\pgfcirc@draw@enable@inputfalse}}
\tikzset{enable input/.code={\pgfcirc@draw@enable@inputtrue}}
\tikzset{no enable input/.code={\pgfcirc@draw@enable@inputfalse}}
\newif\ifpgfcirc@draw@input@leads\pgfcirc@draw@input@leadstrue
\ctikzset{processor draw input leads/.is choice}
\ctikzset{processor draw input leads/true/.code={\pgfcirc@draw@input@leadstrue}}
\ctikzset{processor draw input leads/false/.code={\pgfcirc@draw@input@leadsfalse}}
\tikzset{input leads/.code={\pgfcirc@draw@input@leadstrue}}
\tikzset{no input leads/.code={\pgfcirc@draw@input@leadsfalse}}
\newif\ifpgfcirc@draw@output@leads\pgfcirc@draw@output@leadstrue
\ctikzset{processor draw output leads/.is choice}
\ctikzset{processor draw output leads/true/.code={\pgfcirc@draw@output@leadstrue}}
\ctikzset{processor draw output leads/false/.code={\pgfcirc@draw@output@leadsfalse}}
\tikzset{output leads/.code={\pgfcirc@draw@output@leadstrue}}
\tikzset{no output leads/.code={\pgfcirc@draw@output@leadsfalse}}
\ctikzset{processor draw leads/.is choice}
\ctikzset{processor draw leads/true/.code={\pgfcirc@draw@output@leadstrue\pgfcirc@draw@input@leadstrue}}
\ctikzset{processor draw leads/false/.code={\pgfcirc@draw@output@leadsfalse\pgfcirc@draw@input@leadsfalse}}
\tikzset{all leads/.code={\pgfcirc@draw@output@leadstrue\pgfcirc@draw@input@leadstrue}}
\tikzset{no leads/.code={\pgfcirc@draw@output@leadsfalse\pgfcirc@draw@input@leadsfalse}}
%
% Define helpers
%
% Defines generic object anchors. Requires northwest to be a savedanchor
\def\defineorientationanchors{
\anchor{center}{\pgfpointorigin} % set center to (0,0)
\anchor{text}{\pgf@x=-.5\wd\pgfnodeparttextbox \pgf@y=-.5\ht\pgfnodeparttextbox} % label text anchor
\anchor{left}{\northwest \pgf@x=1.3\pgf@x \pgf@y=0pt}
\anchor{right}{\northwest \pgf@x=-1.3\pgf@x \pgf@y=0pt}
\anchor{north}{\northwest \pgf@x=0pt}
\anchor{east}{\northwest \pgf@x=-\pgf@x \pgf@y=0pt}
\anchor{south}{\northwest \pgf@x=0pt \pgf@y=-\pgf@y}
\anchor{west}{\northwest \pgf@y=0pt}
\anchor{north east}{\northwest \pgf@x=-\pgf@x}
\anchor{north west}{\northwest}
\anchor{south east}{\northwest \pgf@x=-\pgf@x \pgf@y=-\pgf@y}
\anchor{south west}{\northwest \pgf@y=-\pgf@y}
}
%
% Define new objects
%
\makeatletter
\pgfdeclareshape{instrmem}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@y=\ctikzvalof{\ctikzclass/memory/height}\pgf@circ@scaled@Rlen
\pgf@y=.5\pgf@y % take half height
\pgf@x=-\ctikzvalof{\ctikzclass/memory/width}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x % take half width
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
%
% anchors
%
\defineorientationanchors
%
% pin anchors
%
\anchor{a}{
\northwest
\pgf@y=0.5\pgf@y
\pgfmathparse{\pgf@x - \leadlen}
\pgf@x = \pgfmathresult pt
}
\anchor{rd}{
\northwest
\pgf@y=0.5\pgf@y
\pgfmathparse{\pgf@x - \leadlen}
\pgf@x = -\pgfmathresult pt
}
%
% b anchors
%
\anchor{ba}{
\northwest
\pgf@y=0.5\pgf@y
}
\anchor{brd}{
\northwest
\pgf@y=0.5\pgf@y
\pgf@x=-\pgf@x
}
%
% outline
%
\pgf@circ@draw@component{
\pgf@circ@scaled@Rlen=\scaledRlen
\pgf@circ@setcolor
% set up vars
\northwest
\pgf@circ@res@up = \pgf@y
\pgf@circ@res@down = -\pgf@y
\pgf@circ@res@right = -\pgf@x
\pgf@circ@res@left = \pgf@x
% draw shape
\pgfscope
\pgf@circ@setlinewidth{processor}{\pgflinewidth}
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@down}}
\pgfpathclose
\pgf@circ@draworfill
\endpgfscope
\ifpgfcirc@draw@input@leads
%input leads
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0.5\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.5\pgf@circ@res@up}}
\fi
\ifpgfcirc@draw@output@leads
%output leads
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{0.5\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{0.5\pgf@circ@res@up}}
\fi
\pgfusepath{draw}
%draw text
\pgf@circ@text@strokecolor
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.5\pgf@circ@res@up]{\customfont A}
\pgftext[right,x=0.9\pgf@circ@res@right,y=0.5\pgf@circ@res@up]{\customfont RD}
%\pgftext[center,x=0,y=0\pgf@circ@res@up]{\shortstack{Instruction\\Memory}}
}
}
\pgfdeclareshape{datamem}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@y=\ctikzvalof{\ctikzclass/memory/height}\pgf@circ@scaled@Rlen
\pgf@y=.5\pgf@y % take half height
\pgf@x=-\ctikzvalof{\ctikzclass/memory/width}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x % take half width
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
\saveddimen\clkwidth
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/smallwidth}\pgf@circ@scaled@Rlen
}
%
% anchors
%
\defineorientationanchors
%
% pin anchors
%
\anchor{a}{
\northwest
\pgf@y=0.5\pgf@y
\pgfmathparse{\pgf@x - \leadlen}
\pgf@x = \pgfmathresult pt
}
\anchor{wd}{
\northwest
\pgf@y=-0.6\pgf@y
\pgfmathparse{\pgf@x - \leadlen}
\pgf@x = \pgfmathresult pt
}
\anchor{clk}{
\northwest
\pgfmathparse{\pgf@y + \leadlen}
\pgf@y=\pgfmathresult pt
\pgf@x = 0.5\pgf@x
}
\anchor{we}{
\northwest
\pgfmathparse{\pgf@y + \leadlen}
\pgf@y=\pgfmathresult pt
\pgf@x = -0.5\pgf@x
}
\anchor{rd}{
\northwest
\pgf@y=0.5\pgf@y
\pgfmathparse{\pgf@x - \leadlen}
\pgf@x = -\pgfmathresult pt
}
%
% b anchors
%
\anchor{ba}{
\northwest
\pgf@y=0.5\pgf@y
}
\anchor{bwd}{
\northwest
\pgf@y=-0.6\pgf@y
}
\anchor{bclk}{
\northwest
\pgf@x = 0.5\pgf@x
}
\anchor{bwe}{
\northwest
\pgf@x = -0.5\pgf@x
}
\anchor{brd}{
\northwest
\pgf@y=0.5\pgf@y
\pgf@x = -\pgf@x
}
%
% outline
%
\pgf@circ@draw@component{
\pgf@circ@scaled@Rlen=\scaledRlen
\pgf@circ@setcolor
% set up vars
\northwest
\pgf@circ@res@up = \pgf@y
\pgf@circ@res@down = -\pgf@y
\pgf@circ@res@right = -\pgf@x
\pgf@circ@res@left = \pgf@x
% draw shape
\pgfscope
\pgf@circ@setlinewidth{processor}{\pgflinewidth}
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@down}}
\pgfpathclose
\pgf@circ@draworfill
\endpgfscope
% draw CLK input
\pgfmathparse{0.5*\clkwidth}
\pgf@circ@res@step = \pgfmathresult pt
\pgfpathmoveto{\pgfpoint{0.5\pgf@circ@res@left - \pgf@circ@res@step}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up - \pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left + \pgf@circ@res@step}{\pgf@circ@res@up}}
\pgfpathclose
\ifpgfcirc@draw@input@leads
%input leads
% a
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0.5\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.5\pgf@circ@res@up}}
% wd
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0.6\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.6\pgf@circ@res@down}}
% clk
\pgfpathmoveto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up + \leadlen}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up}}
% we
\pgfpathmoveto{\pgfpoint{0.5\pgf@circ@res@right}{\pgf@circ@res@up + \leadlen}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@right}{\pgf@circ@res@up}}
\fi
\ifpgfcirc@draw@output@leads
%output leads
% rd
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{0.5\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{0.5\pgf@circ@res@up}}
\fi
\pgfusepath{draw}
%draw text
\pgf@circ@text@strokecolor
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.5\pgf@circ@res@up]{\customfont A}
\pgftext[right,x=0.9\pgf@circ@res@right,y=0.5\pgf@circ@res@up]{\customfont RD}
\pgftext[center,x=0.5\pgf@circ@res@right,y=0.85\pgf@circ@res@up]{\customfont WE}
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.6\pgf@circ@res@down]{\customfont WD}
%\pgftext[center,x=0,y=0\pgf@circ@res@up]{\shortstack{Data\\Memory}}
}
}
\pgfdeclareshape{regfile}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@y=\ctikzvalof{\ctikzclass/memory/height}\pgf@circ@scaled@Rlen
\pgf@y=.5\pgf@y % take half height
\pgf@x=-\ctikzvalof{\ctikzclass/memory/tickwidth}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x % take half width
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
\saveddimen\clkwidth
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/smallwidth}\pgf@circ@scaled@Rlen
}
%
% anchors
%
\defineorientationanchors
\anchor{text}{
\northwest
\pgfmathparse{-.5\ht\pgfnodeparttextbox+0.25*\pgf@y}
\pgf@y = \pgfmathresult pt
\pgf@x= -.5\wd\pgfnodeparttextbox
}
%
% pin anchors
%
\anchor{a1}{
\northwest
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=0.6\pgf@y
}
\anchor{a2}{
\northwest
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=0pt
}
\anchor{a3}{
\northwest
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=-0.3\pgf@y
}
\anchor{wd3}{
\northwest
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=-0.6\pgf@y
}
\anchor{rd1}{
\northwest
\pgfmathparse{-\pgf@x+\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=0.6\pgf@y
}
\anchor{rd2}{
\northwest
\pgfmathparse{-\pgf@x+\leadlen}
\pgf@x=\pgfmathresult pt
\pgf@y=0pt
}
\anchor{clk}{
\northwest
\pgfmathparse{\pgf@y+\leadlen}
\pgf@y=\pgfmathresult pt
\pgf@x=0.5\pgf@x
}
\anchor{we3}{
\northwest
\pgfmathparse{\pgf@y+\leadlen}
\pgf@y=\pgfmathresult pt
\pgf@x=0pt
}
%
% b anchors
%
\anchor{ba1}{
\northwest
\pgf@y=0.6\pgf@y
}
\anchor{ba2}{
\northwest
\pgf@y=0pt
}
\anchor{ba3}{
\northwest
\pgf@y=-0.3\pgf@y
}
\anchor{bwd3}{
\northwest
\pgf@y=-0.6\pgf@y
}
\anchor{brd1}{
\northwest
\pgf@x=-\pgf@x
\pgf@y=0.6\pgf@y
}
\anchor{brd2}{
\northwest
\pgf@x=-\pgf@x
\pgf@y=0pt
}
\anchor{bclk}{
\northwest
\pgf@x=0.5\pgf@x
}
\anchor{bwe3}{
\northwest
\pgf@x=0pt
}
%
% outline
%
\pgf@circ@draw@component{
\pgf@circ@scaled@Rlen=\scaledRlen
\pgf@circ@setcolor
% set up vars
\northwest
\pgf@circ@res@up = \pgf@y
\pgf@circ@res@down = -\pgf@y
\pgf@circ@res@right = -\pgf@x
\pgf@circ@res@left = \pgf@x
% draw shape
\pgfscope
\pgf@circ@setlinewidth{processor}{\pgflinewidth}
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@down}}
\pgfpathclose
\pgf@circ@draworfill
\endpgfscope
% draw CLK input
\pgfmathparse{0.5*\clkwidth}
\pgf@circ@res@step = \pgfmathresult pt
\pgfpathmoveto{\pgfpoint{0.5\pgf@circ@res@left - \pgf@circ@res@step}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up - \pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left + \pgf@circ@res@step}{\pgf@circ@res@up}}
\pgfpathclose
\ifpgfcirc@draw@input@leads
%input leads
% a1
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left - \leadlen}{0.6\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.6\pgf@circ@res@up}}
% a2
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0pt}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0pt}}
% a3
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0.3\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.3\pgf@circ@res@down}}
% wd3
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left-\leadlen}{0.6\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{0.6\pgf@circ@res@down}}
% clk
\pgfpathmoveto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up +\leadlen}}
\pgfpathlineto{\pgfpoint{0.5\pgf@circ@res@left}{\pgf@circ@res@up}}
% we3
\pgfpathmoveto{\pgfpoint{0}{\pgf@circ@res@up + \leadlen}}
\pgfpathlineto{\pgfpoint{0}{\pgf@circ@res@up}}
\fi
\ifpgfcirc@draw@output@leads
%output leads
% rd1
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{0.6\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right-\pgf@circ@res@other}{0.6\pgf@circ@res@up}}
% rd2
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{0pt}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right-\pgf@circ@res@other}{0pt}}
\fi
\pgfusepath{draw}
%draw text
\pgf@circ@text@strokecolor
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.6\pgf@circ@res@up]{\customfont A1}
\pgftext[left,x=0.9\pgf@circ@res@left,y=0pt]{\customfont A2}
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.3\pgf@circ@res@down]{\customfont A3}
\pgftext[left,x=0.9\pgf@circ@res@left,y=0.6\pgf@circ@res@down]{\customfont WD3}
\pgftext[right,x=0.9\pgf@circ@res@right,y=0.6\pgf@circ@res@up]{\customfont RD1}
\pgftext[right,x=0.9\pgf@circ@res@right,y=0pt]{\customfont RD2}
\pgftext[center,x=0,y=0.85\pgf@circ@res@up]{\customfont WE3}
}
}
\pgfdeclareshape{reg}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@y=\ctikzvalof{\ctikzclass/misc/smallheight}\pgf@circ@scaled@Rlen
\pgfmathparse{0.5*\pgf@y*\ctikzvalof{\ctikzclass/reg/stacks}}
\pgf@y=\pgfmathresult pt
\pgf@x=-\ctikzvalof{\ctikzclass/misc/smallwidth}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x % take half width
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
\saveddimen\stackheight
{
\pgf@x=\ctikzvalof{\ctikzclass/misc/smallheight}\pgf@circ@scaled@Rlen
\pgf@x=0.5\pgf@x
}
%
% anchors
%
\defineorientationanchors
%
% pin anchors
%
\anchor{in}{
\northwest
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
\pgfmathparse{\pgf@y-\stackheight}
\pgf@y=\pgfmathresult pt
}
\anchor{clk}{
\northwest
\pgf@x=0 pt
}
\anchor{en}{
\northwest
\pgf@x=0 pt
\pgf@y=-\pgf@y
}
\anchor{out}{
\northwest
\pgfmathparse{-\pgf@x+\leadlen}
\pgf@x=\pgfmathresult pt
\pgfmathparse{\pgf@y-\stackheight}
\pgf@y=\pgfmathresult pt
}
%
% b anchors
%
\anchor{bin}{
\northwest
\pgfmathparse{\pgf@y-\stackheight}
\pgf@y=\pgfmathresult pt
}
\anchor{bclk}{
\northwest
\pgf@x=0 pt
}
\anchor{ben}{
\northwest
\pgf@x=0 pt
\pgf@y=-\pgf@y
}
\anchor{bout}{
\northwest
\pgf@x=-\pgf@x
\pgfmathparse{\pgf@y-\stackheight}
\pgf@y=\pgfmathresult pt
}
%
% outline
%
\pgf@circ@draw@component{
\pgf@circ@scaled@Rlen=\scaledRlen
\pgf@circ@setcolor
% set up vars
\northwest
\pgf@circ@res@up = \pgf@y
\pgf@circ@res@down = -\pgf@y
\pgf@circ@res@right = -\pgf@x
\pgf@circ@res@left = \pgf@x
% draw shape
\pgfscope
\pgf@circ@setlinewidth{processor}{\pgflinewidth}
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@down}}
\pgfpathclose
\pgf@circ@draworfill
\endpgfscope
% draw clk input
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@up}}
\pgfmathparse{\pgf@circ@res@up - \pgf@circ@res@right}
\pgf@circ@res@step=\pgfmathresult pt
\pgfpathlineto{\pgfpoint{0pt}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\ifpgfcirc@draw@input@leads
%input leads
% in
\northwest
\pgfmathparse{\pgf@y-\stackheight}
\pgf@circ@res@step=\pgfmathresult pt
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left - \leadlen}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@step}}
\fi
\ifpgfcirc@draw@output@leads
%output leads
% out
\northwest
\pgfmathparse{\pgf@y-\stackheight}
\pgf@circ@res@step=\pgfmathresult pt
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right-\pgf@circ@res@other}{\pgf@circ@res@step}}
\fi
\pgfusepath{draw}
\ifpgfcirc@draw@enable@input
\pgftext[bottom,x=0pt,y=\pgf@circ@res@down+2pt]{\customfont \scriptsize EN}
\fi
}
}
\pgfdeclareshape{extend}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgf@y=\ctikzvalof{\ctikzclass/extend/height}\pgf@circ@scaled@Rlen
\pgf@y=.5\pgf@y
\pgf@x=-\ctikzvalof{\ctikzclass/extend/width}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x % take half width
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
\saveddimen\slopeval
{
\pgf@x=\ctikzvalof{processor/extend/slope} pt
}
%
% anchors
%
\defineorientationanchors
\anchor{text}{
\northwest
\pgfmathparse{-.5\ht\pgfnodeparttextbox+\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgf@x=-.5\wd\pgfnodeparttextbox
}
%
% pin anchors
%
\anchor{in}{
\northwest
\pgfmathparse{\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgfmathparse{\pgf@x-\leadlen}
\pgf@x=\pgfmathresult pt
}
\anchor{out}{
\northwest
\pgfmathparse{\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgfmathparse{-1*\pgf@x+\leadlen}
\pgf@x=\pgfmathresult pt
}
\anchor{ctrl}{
\northwest
\pgfmathparse{\pgf@y +\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgf@x=0 pt
}
%
% b anchors
%
\anchor{bin}{
\northwest
\pgfmathparse{\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
}
\anchor{bout}{
\northwest
\pgfmathparse{\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgf@x=-\pgf@x
}
\anchor{bctrl}{
\northwest
\pgfmathparse{\pgf@y +\pgf@x*tan(\slopeval)}
\pgf@y=\pgfmathresult pt
\pgf@x=0 pt
}
%
% outline
%
\pgf@circ@draw@component{
\pgf@circ@scaled@Rlen=\scaledRlen
\pgf@circ@setcolor
% set up vars
\northwest
\pgf@circ@res@up = \pgf@y
\pgf@circ@res@down = -\pgf@y
\pgf@circ@res@right = -\pgf@x
\pgf@circ@res@left = \pgf@x
% draw shape
\pgfscope
\pgf@circ@setlinewidth{processor}{\pgflinewidth}
\pgfmathparse{\pgf@y+2*\pgf@x*tan(\slopeval)}
\pgf@circ@res@step=\pgfmathresult pt
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@down}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@up}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right}{\pgf@circ@res@down}}
\pgfpathclose
\pgf@circ@draworfill
\endpgfscope
\northwest
\pgfmathparse{\pgf@x*tan(\slopeval)}
\pgf@circ@res@step=\pgfmathresult pt
\ifpgfcirc@draw@input@leads
%input leads
% in
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@left - \leadlen}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@left}{\pgf@circ@res@step}}
\fi
\ifpgfcirc@draw@output@leads
%output leads
% out
\pgfpathmoveto{\pgfpoint{\pgf@circ@res@right+\leadlen}{\pgf@circ@res@step}}
\pgfpathlineto{\pgfpoint{\pgf@circ@res@right-\pgf@circ@res@other}{\pgf@circ@res@step}}
\fi
\pgfusepath{draw}
% no text to draw
}
}
\long\def\pgfcirc@declare@arith#1#2#3#4{% #1 name, #2 zero signal, #3 ctrl signal, #4 label
\pgfdeclareshape{#1}{
%
% setup
%
\savedmacro{\ctikzclass}{\edef\ctikzclass{processor}}
\saveddimen{\scaledRlen}{\pgfmathsetlength{\pgf@x}{\ctikzvalof{\ctikzclass/scale}\pgf@circ@Rlen}}
% define northwest as scaled endpoint
\savedanchor\northwest{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@y=\ctikzvalof{\ctikzclass/arith/height}\pgf@circ@scaled@Rlen
\pgf@y=.5\pgf@y
\pgf@x=-\ctikzvalof{\ctikzclass/arith/width}\pgf@circ@scaled@Rlen
\pgf@x=.5\pgf@x
}
\saveddimen\leadlen
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgf@x=\ctikzvalof{\ctikzclass/misc/leadlen}\pgf@circ@scaled@Rlen
}
\saveddimen\slopeval
{
\pgf@x=\ctikzvalof{processor/arith/slope} pt
}
\saveddimen\cutinheight
{
\pgfmathsetlength{\pgf@circ@scaled@Rlen}{\ctikzvalof{\ctikzclass/scale}*\pgf@circ@Rlen}
\pgfmathsetmacro\slopeval{\ctikzvalof{processor/arith/slope}}
\pgfmathparse{0.25*\ctikzvalof{processor/arith/width}*\pgf@circ@scaled@Rlen*tan(\slopeval)}
\pgf@x=\pgfmathresult pt
}
%
% anchors
%
\defineorientationanchors
\anchor{text}{
\northwest
\pgfmathparse{-.5\wd\pgfnodeparttextbox - .25\pgf@x}
\pgf@x=\pgfmathresult pt
\pgf@y=-.5\ht\pgfnodeparttextbox
}
%
% pin anchors
%
\anchor{a}{
\northwest
\pgfmathparse{0.75*\pgf@y + \cutinheight}
\pgf@y=\pgfmathresult pt
\pgfmathparse{\pgf@x-\leadlen}